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Table 1 Cement Hydration Experiments.

From: Experimental Study of Cement - Sandstone/Shale - Brine - CO2Interactions

ID Solid Solution Solid:Soln (g/g) T °C Days pH(c,25)
G3 A 0.13 m CaCl2 1:10 115 43 11.9
G6 A Brine 1:10 115 43 not measured
G7 B MQ water 1:10 115 58 12.2
G8 B MQ water 1:10 115 87 12.3
G9 B MQ water 2:10 115 58 12.3
G10 B MQ water 2:10 115 87 12.1
G11 B MQ water 1:10 95 74 12.3
G12 B MQ water 2:10 95 43 12.3
G13 B MQ water 2:10 95 74 12.1
G14 B Brine 1:10 95 88 11.4
G15 B Brine 2:10 95 88 12.3
  1. A indicates Class G cement, B indicates Class G cement plus bentonite (39 g cement to 1 g bentonite), and Brine indicates 1.8 molal NaCl, 0.55 molal CaCl2 and 0.1 molal MgCl2 solution. Note that brine pH values are conditional (c) because of the high ionic strength.